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 ###Instrução: Qual país teve uma densidade de 41 em 1 de julho de 2010?
 ###Tabelas: CREATE TABLE whanau_house_system (whanau_house_system_id AUTO_INCREMENT PRIMARY KEY, House name VARCHAR, House mascot VARCHAR, House colour VARCHAR, Year opened INT, House leader VARCHAR) CREATE TABLE by_country (by_country_id AUTO_INCREMENT PRIMARY KEY, Country VARCHAR, Launches INT, Successes INT, Failures INT, Partial failures INT) CREATE TABLE consumption (consumption_id AUTO_INCREMENT PRIMARY KEY, Country VARCHAR, 2007/08 INT, 2008/09 INT, 2009/10 INT, 2010/11 INT, 2011/12 INT, 2012/13 INT) CREATE TABLE desktop_and_mobile_browser_usage (desktop_and_mobile_browser_usage_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Internet Explorer VARCHAR, Chrome VARCHAR, Firefox VARCHAR, Safari VARCHAR) CREATE TABLE list_of_the_most_populous_us_counties_sorted_according_to_the_mid-2011_official_estimate_by_the_uscb (list_of_the_most_populous_us_counties_sorted_according_to_the_mid-2011_official_estimate_by_the_uscb_id AUTO_INCREMENT PRIMARY KEY, Rank VARCHAR, County VARCHAR, State VARCHAR, Land area (km²) VARCHAR, Land area (mi²) VARCHAR, April 1, 2010 census VARCHAR, April 1, 2010 density (/km²) VARCHAR, April 1, 2010 density (/mi²) VARCHAR, July 1, 2010 official estimate VARCHAR, July 1, 2010 density (/km²) VARCHAR, July 1, 2010 density (/mi²) VARCHAR, July 1, 2011 official estimate VARCHAR, July 1, 2011 density (/km²) VARCHAR, July 1, 2011 density (/mi²) VARCHAR, Mid-2010 to mid-2011 change (Absolute) VARCHAR, Mid-2010 to mid-2011 change (%) VARCHAR, County seat or courthouse VARCHAR)  
SELECT County FROM list_of_the_most_populous_us_counties_sorted_according_to_the_mid-2011_official_estimate_by_the_uscb WHERE July 1, 2010 density (/km²) = 41